查询词典 ventilating duct

The numerical calculation and simulation results show that the effect of the wall surface heat transfer on its internal temperature field is not serious, the cooling shcheme of ventilating duct can control the maximal temperature gradient on the focal surface within 0.4℃/m successfully and the characteristic structure of enclosed wall is effective on the heat transfer.

数值计算与仿真结果表明：壁面传热对其内部温度场的影响不大；利用通风管道的冷却措施可将焦面的最大温度梯度控制在0.4 ℃/m；围挡的特性结构对传热有效。

Especially the ventilating duct that draw materials becomes at vitreous steeliness and its accessory, it is the new product that

它容重小(2.1T/m3)抗侵蚀、抗衰退、烈度高，因此寿运长，特别适宜于湿润和有酸碱的声所。

The use of differential pressure compensator resolved the difficult problem that partial fan was damaged when fiexible air duct was withdrawn in long blind heading series ventilation , which renewed the mutil partial fan ventilating method.

压差补偿器装置成功地解决了长独头掘进串联通风中柔性风筒被抽出时局部扇风机吸瘪的技术难题，刷新了长独头掘进多台局部扇风机串联通风的常规方法，极大地改善了长独头掘进工作面的生产作业环境。

In the gasifying oven, there are coal feeding port and fuel gas feeding port at the top and the bottom, an inclined plane which drops coal grains and accumulates them onto the bottom, and the ventilating duct with opening over the fuel gas feeding port. It has also steam feeding port at the bottom, resultant gas outlet on the side and waste gas outlet at the upper part.

它是在气化炉的上部和底部分别设有煤供给口和燃气供给口，并设有使投入的煤颗粒落下、堆积到底部上的倾斜面，以及开口端在燃气供给口的上方、在炉内朝上延伸的通风管；还在气化炉的下部和侧部分别设置蒸汽供给口和生成气体排出口，并在上部设置废气排出口。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。